just before his death, ambassador chris stevens told a retired military officer not to travel to libya because it was unsafe. republicans in congress claim the diplomats repeatedly requested more security there. >>> and nasa has released the clearest video yet of the united states at night and from -- well, way above. that dark area you see in the foreground, that's the gulf of mexico. up the gulf coast. north past the big cities, atlanta and on up to washington. eventually, you can see very clearly the bright lights of new york city. video all shot from the international space station. and it is spectacularly beautiful. >> wow! >> that outline is so sharp. >> amazingly sharp, isn't it? >> that was really a treat. thank you, josh. >> you bet. >>> now, this morning to facebook. and new questions about how the company may be using our personal information. the company is under fire right now for selling access to its 900 million users. abc's bianna golodryga is here, more, now, with the details. >> reporter: good morning to you. this morning, facebook is facing another crisis of confiden